CN216894774U

CN216894774U - Resin filling equipment for casting sand core for manufacturing bellmouth

Info

Publication number: CN216894774U
Application number: CN202122625907.5U
Authority: CN
Inventors: 杨勇
Original assignee: Hebei Jingdong Pipe Industry Co ltd
Current assignee: Hebei Jingdong Pipe Industry Co ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-07-05
Anticipated expiration: 2031-10-29

Abstract

The utility model discloses resin filling equipment for a bellmouth-making casting sand core, and belongs to the technical field of auxiliary equipment for casting pipes. Including operation mechanism, an oiling section of thick bamboo and heating mechanism, an oiling section of thick bamboo is the cylinder, the outer wall and the heating mechanism of an oiling section of thick bamboo are connected, heating mechanism heats an oiling section of thick bamboo, operation mechanism includes piston, piston rod and actuating mechanism, the piston is located in the oiling section of thick bamboo, the both ends of piston rod respectively with actuating mechanism and piston connection, actuating mechanism drive reciprocating motion about the piston, the tip of an oiling section of thick bamboo is equipped with oil inlet and oil-out, the oil inlet passes through connecting pipe and external resin storehouse intercommunication. The output quantity of the filled resin can be controlled, the resin in the oil filling cylinder can be heated by electrifying the electromagnetic coil, and the resin heating speed is high and the resin heating efficiency is high. Can stably fill resin, has simple structure and convenient use.

Description

Resin filling equipment for casting sand core for manufacturing bellmouth

Technical Field

The utility model belongs to the technical field of auxiliary equipment for casting pipes, and particularly relates to resin filling equipment for a bellmouth-making casting sand core.

Background

The cast pipe must use sand core to shape and cast the pipe socket in the production process. The sand core mainly comprises phenolic resin and sand, and triethylamine is used during curing. The viscosity of the resin is increased along with the reduction of the environmental temperature, and the resin is not easy to react with triethylamine at low temperature, so that the strength of the sand core is not enough, and the resin and the core making sand are wasted. The existing resin pump adopts the mode that an air bag is filled in hydraulic oil and the pressure is exchanged in an equivalent mode to convey resin, and the resin is heated in other container tanks by thermocouples.

The existing resin constant delivery pump has a complex structure and cannot realize rapid heating and preheating; the resin capsule is easy to break, all pipelines and the pump body are required to be dismounted and cleaned again after the broken resin and the hydraulic oil are mixed, and the difficulty is high after the maintenance time is long. The resin capsule has short service life and high replacement frequency.

Disclosure of Invention

The utility model provides a resin filling device for a bellmouth-making casting sand core, which can quickly heat resin and accurately output the heated resin outwards.

The utility model solves the technical problem by the following technical means,

the utility model provides a system bellmouth casting resin filling equipment for psammitolite, includes operation mechanism, annotates a section of thick bamboo, heating mechanism and resin heating end, it is the cylinder to annotate a section of thick bamboo, annotate the outer wall and the heating mechanism of a section of thick bamboo and be connected, heating mechanism heats an notes section of thick bamboo, operation mechanism includes piston, piston rod and actuating mechanism, the piston is located annotate in the section of thick bamboo, the both ends of piston rod respectively with actuating mechanism and hinge joint, actuating mechanism drive reciprocating motion about the piston, the tip of annotating a section of thick bamboo is equipped with oil inlet and oil-out, the oil inlet passes through connecting pipe and external resin storehouse intercommunication.

According to the resin filling equipment for the bellmouth-making casting sand core, the top and the bottom of the oil filling cylinder are respectively provided with the upper top cover and the lower top cover, the upper top cover is provided with the upper oil inlet and the upper oil outlet, the center of the lower top cover is provided with the pull hole, the piston rod extends into the oil filling cylinder through the pull hole, and the upper oil inlet and the upper oil outlet are respectively provided with the check valve.

According to the resin filling equipment for the bellmouth-making casting sand core, the lower top cover is also provided with the lower oil inlet and the lower oil outlet, and the lower oil inlet and the lower oil outlet are respectively provided with the one-way valve.

According to the resin filling equipment for casting the sand core for the bellmouth, the operation mechanism comprises the variable frequency motor and the speed reducer, the variable frequency motor, the speed reducer and the bottom end of the piston rod are sequentially connected, and the speed reducer drives the piston rod to move up and down.

According to the resin filling equipment for the bellmouth-making casting sand core, the bottom of the piston rod is provided with the external thread, the speed reducer is provided with the worm wheel and the worm, the worm is connected with the variable frequency motor and the worm wheel, the middle part of the worm wheel is provided with the screw hole matched with the external thread of the piston rod, and the external thread of the piston rod is matched and connected with the screw hole.

According to the resin filling equipment for the bellmouth-making casting sand core, the filling cylinder is made of ferromagnetic materials, the heating mechanism comprises the electromagnetic coil and the variable frequency controller, the electromagnetic coil is wound outside the filling cylinder, and the electromagnetic coil is connected with the variable frequency controller.

Compared with the prior art, the two ends of the filling cylinder are provided with the oil inlet and the oil outlet, the two-way movement of the piston rod can suck resin into the filling cylinder and output the heated resin outwards, the propelling quantity of the piston rod is controlled through the worm gear structure, the output quantity of the filled resin can be controlled, the resin in the filling cylinder can be heated through electrifying the electromagnetic coil, and the resin heating speed and the resin heating efficiency are high. Can stably fill resin, has simple structure and convenient use.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the reducer of the present invention;

reference numerals in the drawings denote: 1. the oil injection device comprises an oil injection cylinder, 2 pistons, 3 piston rods, 4 resin filling ends, 5 resin bins, 6 upper top covers, 7 lower top covers, 8 upper oil inlet ports, 9 upper oil outlet ports, 10 lower oil inlet ports, 11 lower oil outlet ports, 12 variable frequency motors, 14 worm wheels, 15 worms, 16 electromagnetic coils, 17 variable frequency controllers.

Detailed Description

The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples serve to illustrate the utility model.

Referring to the attached drawings 1-2, the oil filling device comprises an operation mechanism, an oil filling cylinder 1, a heating mechanism and a resin filling end 4, wherein the oil filling cylinder 1 is a cylinder, the outer wall of the oil filling cylinder 1 is connected with the heating mechanism, the heating mechanism heats the oil filling cylinder 1, the operation mechanism comprises a piston 2, a piston rod 3 and a driving mechanism, the piston 2 is located in the oil filling cylinder 1, two ends of the piston rod 3 are respectively connected with the driving mechanism and the piston 2, the driving mechanism drives the piston 2 to reciprocate up and down, an oil inlet and an oil outlet are formed in the end portion of the oil filling cylinder 1, and the oil inlet is communicated with an external resin bin 5 through a connecting pipe. Through the setting, the piston removes and to inhale the cartridge heater with the resin in the resin storehouse, and heating mechanism can heat the resin in the oiling section of thick bamboo, and the resin after the heating can get into resin through the oil-out and annotate the end, can annotate the resin in the system core sand through resin notes end.

In order to smoothly suck and output resin, an upper top cover 6 and a lower top cover 7 are respectively arranged at the top and the bottom of the oil filling cylinder 1, the upper top cover 6 is provided with an upper oil inlet 8 and an upper oil outlet 9, the center of the lower top cover 7 is provided with a pull hole, the piston rod 3 extends into the oil filling cylinder 1 through the pull hole, and the upper oil inlet 8 and the upper oil outlet 9 are both provided with one-way valves. The piston moves downwards, resin in the resin bin is sucked into the oil filling cylinder through the upper oil inlet, the sucked resin is located above the piston, then the heating mechanism works to heat, the piston moves upwards, and the heated resin reaches the resin heating end through the upper oil outlet.

The lower top cover 7 is also provided with a lower oil inlet 10 and a lower oil outlet 11, and the oil inlet 10 and the lower oil outlet 11 are both provided with one-way valves. Thus, when the piston moves upwards, the resin is sucked below the piston through the lower oil inlet, and when the piston moves downwards, the heated resin is pushed out to the resin heating end through the lower oil outlet. Through the arrangement, the piston moves to realize that one side of the piston sucks resin and the other side outputs the resin, so that the resin is continuously filled, and the working efficiency is improved.

The operation mechanism comprises a variable frequency motor 12 and a speed reducer, the variable frequency motor 12, the speed reducer and the bottom end of the piston rod 3 are sequentially connected, and the speed reducer drives the piston rod 3 to move up and down. The bottom of the piston rod 3 is provided with external threads, the speed reducer is provided with a worm wheel 14 and a worm 15, the worm 15 is connected with a variable frequency motor 12 and the worm wheel 14, the middle part of the worm wheel 14 is provided with a screw hole matched with the external threads of the piston rod 3, and the external threads of the piston rod 3 are matched and connected with the screw hole. Therefore, the rotation of the worm wheel can be controlled by controlling the rotation of the variable frequency motor, so that the moving distance of the piston rod is controlled.

Preferably, the oil filling cylinder 1 is made of ferromagnetic materials, the heating mechanism comprises an electromagnetic coil 16 and a variable frequency controller 17, the electromagnetic coil 16 is wound outside the oil filling cylinder 1, and the electromagnetic coil 16 is connected with the variable frequency controller 17. The electromagnetic heating has high heating efficiency and can improve the heating power.

The working principle is as follows: the speed reducer is driven to push the piston rod to move up and down by controlling the forward and reverse rotation of the variable frequency motor, and when the piston moves upwards, the resin is conveyed outwards through the one-way valve of the upper oil outlet; meanwhile, negative pressure is formed below the piston, and resin is sucked into the oil injection cylinder through a check valve of the lower oil inlet. When the cylinder piston moves downwards, the resin is conveyed outwards through the one-way valve of the lower oil outlet; meanwhile, negative pressure is formed above the piston, and resin is sucked through the check valve of the upper oil inlet. Reciprocating action, and realizing the stable control of the resin flow through the rotating speed of the variable frequency motor. The resin in the oiling barrel is heated by an electromagnetic coil on the outer ring of the cylinder body, the heating temperature is controlled by a variable frequency controller, and the resin can be conveyed at constant temperature after the temperature required by the resin is reached.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The resin filling equipment for casting the sand core for the bellmouth is characterized by comprising an operation mechanism, an oil injection cylinder (1), a heating mechanism and a resin filling end (4), the oil filling cylinder (1) is a cylinder, the outer wall of the oil filling cylinder (1) is connected with a heating mechanism, the heating mechanism heats the oil filling cylinder (1), the running mechanism comprises a piston (2), a piston rod (3) and a driving mechanism, the piston (2) is positioned in the oil filling cylinder (1), two ends of the piston rod (3) are respectively connected with the driving mechanism and the piston (2), the driving mechanism drives the piston (2) to reciprocate up and down, the end part of the oil filling cylinder (1) is provided with an oil inlet and an oil outlet, the oil inlet is communicated with an external resin bin (5) through a connecting pipe, and the oil outlet is connected with the resin filling end (4).

2. The resin filling equipment for the bellmouth-making casting sand core according to claim 1, wherein an upper top cover (6) and a lower top cover (7) are respectively arranged at the top and the bottom of the oil filling cylinder (1), the upper top cover (6) is provided with an upper oil inlet (8) and an upper oil outlet (9), a pull hole is formed in the center of the lower top cover (7), the piston rod (3) extends into the oil filling cylinder (1) through the pull hole, and the upper oil inlet (8) and the upper oil outlet (9) are respectively provided with a one-way valve.

3. The resin filling apparatus for the bellmouth-making casting sand core according to claim 2, wherein the lower top cover (7) is also provided with a lower oil inlet (10) and a lower oil outlet (11), and the lower oil inlet (10) and the lower oil outlet (11) are both provided with check valves.

4. The resin filling equipment for the bellmouth-making casting sand core according to claim 3, wherein the operating mechanism comprises a variable frequency motor (12) and a speed reducer, the variable frequency motor (12), the speed reducer and the bottom end of the piston rod (3) are sequentially connected, and the speed reducer drives the piston rod (3) to move up and down.

5. The resin filling equipment for the bellmouth-making casting sand core according to claim 4, wherein the bottom of the piston rod (3) is provided with an external thread, the speed reducer is provided with a worm wheel (14) and a worm (15), the worm (15) is connected with a variable frequency motor (12) and the worm wheel (14), the middle part of the worm wheel (14) is provided with a screw hole matched with the external thread of the piston rod (3), and the external thread of the piston rod (3) is matched and connected with the screw hole.

6. The resin filling equipment for the bellmouth-making casting sand core as claimed in claim 5, wherein the oil filling cylinder (1) is made of ferromagnetic material, the heating mechanism comprises an electromagnetic coil (16) and a variable frequency controller, the electromagnetic coil (16) is wound outside the oil filling cylinder (1), and the electromagnetic coil (16) is connected with the variable frequency controller.